Safety razor



May 23, 1939. I LON 2,159,560

SAFETY RAZOR Filed April 13, 1936 amen vim,

W mw

Patented May 23, 1939 UNITED STATES PATENT oFncE 3 Claims.

This invention relates to safety razors, and in particular to that type of safety razor comprising a cap member, a body member having means for supporting the razor blade, and clamping means for locking the cap member, the blade,

and the body member in operative position.

In razors of the type described it has been known hingedly or similarly, to secure together the body member and the cap member so that,

apart from the blade, there are no loose and separate parts to be dropped or mislaid.

A common defect in such hinged attachments becomes apparent when the cap member is being engaged in, or disengaged from, operative connection with the body member, in that on the cap member turning on its hinge, it is liable to make contact with the loose razor blade, thereby either possibly damaging the cutting edges thereof, or dislodging the blade from its seating.

These defects are overcome or minimised in the present invention, wherein simple yet effective means are provided to prevent rotative movement of the cap member before it is lifted clear of possible contact with the blade.

A further feature of the invention resides in the provision of means whereby the blade will rest in a stabilized position on the body member when the razor is in open position, thus minimising or preventing the present tendency of the blade to fall off or rock on the rounded body member.

A further feature of my invention comprises so designing the body member as to enable the blade to be readily lifted therefrom when desired.

I shall now, however, describe with reference to the accompanying drawing some constructional embodiments to illustrate the above defined leading features of my invention.

In such drawing,

Figure 1 is an outside view of part of a razor with the cap member disengaged and thrown backwards for removal of the blade, showing an adaptation of my invention wherein an arm of the cap member is slotted.

Figure 2 is an enlarged view of the cap mem ber embodying the special adaptation shown in Figure 1.

Figure 3 is a view of the body member shown in Figure 1.

Figure 4 is an enlarged view of the slotted arm formed on the cap member shown in Figures 1 and 2.

Figure 5 is an enlarged view of a dependent lug formed on the body member shown in Fig- 55 ures 1 and 3.

Referring to the drawing, small downwardly projecting lugs I are shown dependent from the body member 2, to provide hinged attachments of the cap member 3. The outer side of each lug is a plane face 4, which is enlarged at its upper end to form a curved recess 5, to provide housing for a boss on the cap arm to be hereinafter described. At the edge of the said plane face 4, and parallel with the vertical centre line, is an outwardly raised guide face 6 terminating at its upper end in the enlarged curved recess 5. At the centre point of each curved recess 5 is a projecting hinge pin 1.

The cap member 3, is curved on its outer and inner surfaces after the usual manner, or may be shaped to conform to the top of the body memher 2. The cap member 3 is preferably made of a length to completely cover lengthwise the blade itself, and is provided with end covers 8 integral with the cap member and projecting downwards and so disposed as to enclose the ends of the body member 2 and blade when the razor is assembled: this is to provide finger grips for handling the cap member without disturbing the blade. This feature is shown in Figure 2: or alternatively, the ends of the cap member may be extended beyond the ends of the blade member.

The arms 9 projecting from the cap member each terminates in an enlarged end ID or a boss as shown particularly in Figure 4, each arm has a vertical slot ll of such a size as to freely pass over the hinge pins 1 on the body member lugs I.

Each boss II] is of a size suitable for housing in the curved recess 5 of the body member lug, and there rotate on the pin in the slot. Each boss is so shaped and sized as to prevent on rotation of the cap member the pin sliding down the slot in the arm, the raised guide or guides 6 forming a bar to such return. To permit the pin to slidably pass up and down the slot, the boss is provided on one side with a flat 12, in such a position as to permit the sliding motion referred to only when the cap member and the body member are co-ordinated in co-axial alignment: or in other words, only vertical movement of the cap member is possible until it is sufficiently withdrawn for the bosses I0 to enter their curved recesses 5 and there revolve to permit turning of the cap member, as shown in Figure 1.

Although in the foregoing specification and in the appended drawing, boss arms and dependent lugs are provided at both ends of the cap member and the body member, it will be readily understood that a single boss arm and dependent lug with associated features will serve as attachment at one end, of the cap and body member before it is lifted clear of possible contact with the blade: suitable attachment of the cap member to the body member being provided at the other end thereof.

Indentations IS on either or both ends of the body member 2 allow the blade, when the cap is removed, to lie with its outer ends conveniently exposed in part, to provide finger grip for lifting the blade off its seating on the body member.

A further feature of my invention is the provision on the body member 2 of a flat surface I! on which the razor blade is seated when being assembled, it being found that there is a tendency for the blade to rock if placed on an entirely curved surface.

Any known form of clamping means for looking the cap member, and the body member, may be provided.

The operation of the invention will be apparent from the foregoing description.

I claim:

1. In safety razors of the type described, a body member, a cap member, means to pivotally attach the cap member to the body member so as to prevent rotative movement of the cap member in relation to the body member before it is lifted clear of possible contact with the blade, the said means comprising lugs dependent from the body member and having a hinge pin and a fiat raised vertical guide face formed on the said lugs with a curved recess adjacent to and partly radial to the hinge pin and arms projecting from the cap member and engaging with the hinge pin and operating in association with the aforementioned guide face and curved recess.

2. In safety razors as claimed in claim 1, in which the cap member has projecting arms, each arm having a vertical slot therein, one side of each arm having a straight vertical face, and the other side a curved boss on the lower extremity thereof.

3. In a safety razor of the type described, comprising a body member, a cooperating cap member, means for pivotally attaching the cap member to the body member comprising a slotted depending lug projecting from the cap member, a hinge pin disposed in the slotted portion of said cap member and secured in a depending lug on the body member, a curved boss end formed on the depending lug of the cap member, a flat side formed on the lug of the cap member, and a raised guide face formed on the depending lug of the body member and cooperating with the depending lug of the cap member, and an upper enlarged curved recess formed on the depending lug of the body member to permit relative turning movement of the cap and body member.

JAMES LONG. 

